When the medulla oblongata (M.O.) is damaged, then what happen ?

Options

A. Immediately die
B. Die after few hrs.
C. Live at 1 hrs & after it may die
D. No affect

Answer

### Step-by-Step Solution:

1. **Understanding the Medulla Oblongata**:
- The medulla oblongata is a crucial part of the brainstem in vertebrates, derived from the hindbrain. It connects the brain to the spinal cord.

2. **Functions of the Medulla Oblongata**:
- It regulates several vital involuntary functions, including:
- Respiration (breathing)
- Heartbeat (cardiac function)
- Blood pressure
- Other involuntary processes that are essential for survival.

3. **Consequences of Damage**:
- When the medulla oblongata is damaged, it disrupts the regulation of these vital functions.
- Specifically, the functions that are affected include:
- Stopping of respiration
- Stopping of heartbeat

4. **Immediate Outcome**:
- Due to the cessation of respiration and heartbeat, the person will not be able to survive.
- Therefore, the immediate consequence of damage to the medulla oblongata is death.

5. **Conclusion**:
- In summary, if the medulla oblongata is damaged, the individual will die immediately due to the failure of critical life-sustaining functions.